EPA drinking water rule · 123
Long Term 2 Enhanced Surface Water Treatment Rule
See how this rule appears in the reported histories and find systems with unresolved health-based records.
- Violation records shown
- 1,670
- Systems with a linked record
- 386
- Unresolved health-based records
- 242
Rule records by EPA-listed state
| Listed state | Systems | Violation records | Unresolved health-based records |
|---|---|---|---|
| Alabama | 2 | 4 | 1 |
| Alaska | 20 | 382 | 3 |
| Arizona | 2 | 7 | 0 |
| Arkansas | 2 | 2 | 0 |
| California | 12 | 35 | 10 |
| Colorado | 47 | 163 | 0 |
| District of Columbia | 2 | 3 | 2 |
| Idaho | 3 | 4 | 0 |
| Illinois | 15 | 32 | 0 |
| Indiana | 2 | 2 | 1 |
| Iowa | 1 | 3 | 0 |
| Kansas | 6 | 29 | 0 |
| Kentucky | 8 | 17 | 0 |
| Louisiana | 8 | 34 | 4 |
| Maryland | 2 | 3 | 0 |
| Massachusetts | 2 | 2 | 0 |
| Michigan | 1 | 2 | 0 |
| Minnesota | 1 | 4 | 1 |
| Mississippi | 1 | 2 | 0 |
| Missouri | 11 | 14 | 1 |
| Montana | 9 | 67 | 1 |
| Nebraska | 1 | 2 | 0 |
| New Hampshire | 2 | 4 | 0 |
| New Mexico | 5 | 13 | 4 |
| New York | 4 | 6 | 2 |
| North Carolina | 2 | 2 | 0 |
| North Dakota | 2 | 2 | 0 |
| Ohio | 13 | 16 | 5 |
| Oklahoma | 3 | 28 | 0 |
| Oregon | 4 | 41 | 10 |
| Pennsylvania | 7 | 8 | 0 |
| Puerto Rico | 25 | 83 | 7 |
| South Dakota | 5 | 8 | 1 |
| Tennessee | 14 | 20 | 0 |
| Texas | 22 | 301 | 0 |
| Washington | 6 | 7 | 0 |
| West Virginia | 102 | 295 | 187 |
| Wyoming | 12 | 23 | 2 |
Systems with unresolved health-based records for this rule
- BLUEWELL PSDWV3302804 · West Virginia · 2 unresolved health-based records for this rule
- BO. NUEVOPR0005557 · Puerto Rico · 1 unresolved health-based records for this rule
- BUCKEYE TRAILS - LOH6501512 · Ohio · 1 unresolved health-based records for this rule
- BUCKEYE TRAILS - MOH6501812 · Ohio · 1 unresolved health-based records for this rule
- BURNT RANCH ESTATESCA5304109 · California · 1 unresolved health-based records for this rule
- CAIRO WATER DEPARTMENTWV3304301 · West Virginia · 1 unresolved health-based records for this rule
- CANALIZOPR0003212 · Puerto Rico · 1 unresolved health-based records for this rule
- CHARDON ESTATESOH2802612 · Ohio · 1 unresolved health-based records for this rule
- CITY OF FRANKLIN WATER SUPPLYLA1101003 · Louisiana · 1 unresolved health-based records for this rule
- CLAY WATER DEPTWV3300801 · West Virginia · 3 unresolved health-based records for this rule
- COPCO LAKE MWCCA4700551 · California · 1 unresolved health-based records for this rule
- DELBARTON TOWN OFWV3303011 · West Virginia · 1 unresolved health-based records for this rule
- ELLENBORO PSDWV3304302 · West Virginia · 1 unresolved health-based records for this rule
- FAIRVIEW TOWN OFWV3302503 · West Virginia · 2 unresolved health-based records for this rule
- FARMINGTON TOWN OFWV3302504 · West Virginia · 10 unresolved health-based records for this rule
- FORT GAY WATER WORKSWV3305004 · West Virginia · 1 unresolved health-based records for this rule
- GAULEY RIVER PSDWV3301042 · West Virginia · 5 unresolved health-based records for this rule
- GRAND PORTAGE055294101 · Minnesota · 1 unresolved health-based records for this rule
- GRANGER, TOWN OFWY5600020 · Wyoming · 1 unresolved health-based records for this rule
- GREATER HARRISON PSD VALLEY OF GOOD HOPEWV3301727 · West Virginia · 1 unresolved health-based records for this rule
- GREEN VALLEY GLENWOOD PSD BULLTAILWV3302813 · West Virginia · 1 unresolved health-based records for this rule
- GUILARTEPR0004494 · Puerto Rico · 1 unresolved health-based records for this rule
- Havasu Water Company090600202 · California · 5 unresolved health-based records for this rule
- HAYMOND PSDWV3304606 · West Virginia · 1 unresolved health-based records for this rule
- HUGHES RIVER WATERWV3304307 · West Virginia · 1 unresolved health-based records for this rule
- JOINT BASE ANACOSTIA - BOLLINGDC0000004 · District of Columbia · 2 unresolved health-based records for this rule
- JUSTICE PSDWV3303014 · West Virginia · 2 unresolved health-based records for this rule
- KANAWHA FALLS PSDWV3301037 · West Virginia · 1 unresolved health-based records for this rule
- KERMIT WATER WORKSWV3303003 · West Virginia · 2 unresolved health-based records for this rule
- LA PICAPR0003042 · Puerto Rico · 1 unresolved health-based records for this rule
- LARES ESPINOPR0003872 · Puerto Rico · 1 unresolved health-based records for this rule
- LEADSVILLE PSDWV3304215 · West Virginia · 2 unresolved health-based records for this rule
- LEIGHTS MHPWV3301920 · West Virginia · 1 unresolved health-based records for this rule
- LESTER MUNICIPAL WATER WORKSWV3304115 · West Virginia · 4 unresolved health-based records for this rule
- LINCOLN PSDWV3302205 · West Virginia · 2 unresolved health-based records for this rule
- LINCOLN PSD - LOWER MUD RIVERWV3302208 · West Virginia · 2 unresolved health-based records for this rule
- LINCOLN PSD - ROUTE 3WV3302207 · West Virginia · 2 unresolved health-based records for this rule
- LOGAN CO P S D - CRAWLEY CREEKWV3302363 · West Virginia · 3 unresolved health-based records for this rule
- LOGAN CO PSD - STOLLINGSWV3302341 · West Virginia · 1 unresolved health-based records for this rule
- LOGAN CO PSD-GREENVILLE SYSTEMWV3302357 · West Virginia · 4 unresolved health-based records for this rule
- LOGAN CO PSD-RUM CREEKWV3302355 · West Virginia · 2 unresolved health-based records for this rule
- LOGAN COUNTY PSD - NORTHERN REGIONALWV3302364 · West Virginia · 1 unresolved health-based records for this rule
- LUMBERPORT TOWN OFWV3301714 · West Virginia · 1 unresolved health-based records for this rule
- MAMEYES ABAJOPR0003122 · Puerto Rico · 1 unresolved health-based records for this rule
- MATEWAN WATER WORKSWV3303005 · West Virginia · 6 unresolved health-based records for this rule
- MCDOWELL COUNTY PSD BARTLEYWV3302434 · West Virginia · 1 unresolved health-based records for this rule
- MEADOW BRIDGE TOWN OFWV3301022 · West Virginia · 3 unresolved health-based records for this rule
- METLAKATLA100211202 · Alaska · 3 unresolved health-based records for this rule
- MICHIANA ESTATES LLC - WATER SYSTEMIN5246026 · Indiana · 1 unresolved health-based records for this rule
- MIDDLEBOURNE WATER WORKSWV3304802 · West Virginia · 1 unresolved health-based records for this rule
- MILL CREEK WATER DEPTWV3304209 · West Virginia · 3 unresolved health-based records for this rule
- MINGO CO PSD - RAGLAND DISTRICTWV3303013 · West Virginia · 4 unresolved health-based records for this rule
- MINGO COUNTY PSD - CHATTAROYWV3303001 · West Virginia · 5 unresolved health-based records for this rule
- MINGO COUNTY PSD - LICK CREEKWV3303032 · West Virginia · 4 unresolved health-based records for this rule
- MINGO COUNTY PSD - MARROWBONEWV3303033 · West Virginia · 6 unresolved health-based records for this rule
- MINGO COUNTY PSD - NAUGATUCKWV3303029 · West Virginia · 1 unresolved health-based records for this rule
- MINGO COUNTY PSD - PIGEON CREEKWV3303031 · West Virginia · 6 unresolved health-based records for this rule
- MONTEVALLO WATER WORKS & SEWER BOARDAL0001160 · Alabama · 1 unresolved health-based records for this rule
- MOROVIS URBANOPR0002762 · Puerto Rico · 1 unresolved health-based records for this rule
- MOUNT HOPE WATERWV3301024 · West Virginia · 5 unresolved health-based records for this rule
- MOUNT ZION P S DWV3300702 · West Virginia · 7 unresolved health-based records for this rule
- NEW YORK CITY SYSTEMNY7003493 · New York · 1 unresolved health-based records for this rule
- OCEANA COMMUNITY OFWV3305516 · West Virginia · 1 unresolved health-based records for this rule
- ORLEANS C.S.D.CA1200729 · California · 1 unresolved health-based records for this rule
- ORLEANS MUTUAL WATER COMPANYCA1200566 · California · 1 unresolved health-based records for this rule
- PAUMA VALLEY WATER COMPANYCA3700934 · California · 1 unresolved health-based records for this rule
- PAX WATER COMPANYWV3301026 · West Virginia · 7 unresolved health-based records for this rule
- PENDLETON WATER ASSOCIATIONLA1085046 · Louisiana · 1 unresolved health-based records for this rule
- PINE GROVE WATERWV3305205 · West Virginia · 1 unresolved health-based records for this rule
- PINE RIVER MDCANM3501024 · New Mexico · 1 unresolved health-based records for this rule
- PINEVILLE MUNICIPAL WATERWV3305517 · West Virginia · 1 unresolved health-based records for this rule
- PLATTE COUNTY PWSD 2MO1024476 · Missouri · 1 unresolved health-based records for this rule
- PLEASANT HILL P S D RT 16 DISTRICTWV3300703 · West Virginia · 1 unresolved health-based records for this rule
- PLEASANT VALLEY PSDWV3303112 · West Virginia · 6 unresolved health-based records for this rule
- PORTLAND WATER BUREAUOR4100657 · Oregon · 1 unresolved health-based records for this rule
- RALEIGH COUNTY PSD ARNETTWV3304140 · West Virginia · 1 unresolved health-based records for this rule
- REAMER HILL WATER ASSOCWV3302077 · West Virginia · 4 unresolved health-based records for this rule
- RED LANE DOMESTIC WATER, INC.WY5600232 · Wyoming · 1 unresolved health-based records for this rule
- RENICK, TOWN OFWV3301328 · West Virginia · 6 unresolved health-based records for this rule
- RICHWOOD WATER DEPTWV3303401 · West Virginia · 3 unresolved health-based records for this rule
- RIDGEVIEW ESTATES PROP ASSOCWV3302361 · West Virginia · 5 unresolved health-based records for this rule
- ROMNEY WATER DEPTWV3301405 · West Virginia · 1 unresolved health-based records for this rule
- RUSSELLS MHPWV3301929 · West Virginia · 1 unresolved health-based records for this rule
- SANDY, CITY OFOR4100789 · Oregon · 1 unresolved health-based records for this rule
- SHERWOOD FOREST MHP PWSOH1901112 · Ohio · 2 unresolved health-based records for this rule
- SHINNSTON CITY OFWV3301721 · West Virginia · 8 unresolved health-based records for this rule
- STANDING ROCK RURAL WATER SYSTEM084690510 · South Dakota · 1 unresolved health-based records for this rule
- SUNNY VIEW ACRES WATER PROJECTWV3302521 · West Virginia · 2 unresolved health-based records for this rule
- SYRACUSE CITYNY3304334 · New York · 1 unresolved health-based records for this rule
- TIMBERLINE-CV PSDWV3304711 · West Virginia · 2 unresolved health-based records for this rule
- TIMBERON W AND SDNM3546419 · New Mexico · 3 unresolved health-based records for this rule
- TOWN OF LUTCHER WATERWORKSLA1093003 · Louisiana · 1 unresolved health-based records for this rule
- TOWN OF NEWELLTON WATER SYSTEMLA1107003 · Louisiana · 1 unresolved health-based records for this rule
- TWO MEDICINE WATER - EAST GLACIER083090090 · Montana · 1 unresolved health-based records for this rule
- VALLEY FALLS PSDWV3302523 · West Virginia · 1 unresolved health-based records for this rule
- WARM SPRINGS WATER TREATMENT PLANT104101247 · Oregon · 8 unresolved health-based records for this rule
- WAYNE WATER TOWN OFWV3305007 · West Virginia · 14 unresolved health-based records for this rule
- WEST LOGAN WATER COWV3302343 · West Virginia · 2 unresolved health-based records for this rule
- WHEELINGWV3303516 · West Virginia · 2 unresolved health-based records for this rule
- WILLIAMSON UTILITY BOARDWV3303009 · West Virginia · 6 unresolved health-based records for this rule
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility